mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-28 07:31:15 +00:00
lib: add BLAKE2 hash support
The code is cross-ported from BLAKE2 reference implementation (https://github.com/BLAKE2/BLAKE2). With minimal change to remove unused macros/features. Currently there is only one user inside U-boot (btrfs), and since it only utilize BLAKE2B, all other favors are all removed. Signed-off-by: Qu Wenruo <wqu@suse.com> [trini: Rename ROUND to R to avoid clash with <linux/bitops.h> Signed-off-by: Tom Rini <trini@konsulko.com>
This commit is contained in:
Qu Wenruo
Tom Rini
parent
ae435aefbc
commit
7c3fd5c25d
5 changed files with 577 additions and 0 deletions
94
include/u-boot/blake2.h
Normal file
94
include/u-boot/blake2.h
Normal file
|
|
@ -0,0 +1,94 @@
|
|||
/* SPDX-License-Identifier: CC0-1.0 */
|
||||
/*
|
||||
BLAKE2 reference source code package - reference C implementations
|
||||
|
||||
Copyright 2012, Samuel Neves <sneves@dei.uc.pt>. You may use this under the
|
||||
terms of the CC0, the OpenSSL Licence, or the Apache Public License 2.0, at
|
||||
your option. The terms of these licenses can be found at:
|
||||
|
||||
- CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0
|
||||
- OpenSSL license : https://www.openssl.org/source/license.html
|
||||
- Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
More information about the BLAKE2 hash function can be found at
|
||||
https://blake2.net.
|
||||
*/
|
||||
|
||||
/*
|
||||
* Cross-ported from BLAKE2 (https://github.com/BLAKE2/BLAKE2).
|
||||
* Modifications includes:
|
||||
*
|
||||
* - Remove unsupported compilers like MSC/CPP
|
||||
* - Remove blake2s/blake2sp/blake2bp
|
||||
* This blake2 implementation is mostly for btrfs, which only utilizes
|
||||
* blake2b.
|
||||
*/
|
||||
#ifndef BLAKE2_H
|
||||
#define BLAKE2_H
|
||||
|
||||
#include <stddef.h>
|
||||
#include <stdint.h>
|
||||
|
||||
#if defined(_MSC_VER)
|
||||
#define BLAKE2_PACKED(x) __pragma(pack(push, 1)) x __pragma(pack(pop))
|
||||
#else
|
||||
#define BLAKE2_PACKED(x) x __attribute__((packed))
|
||||
#endif
|
||||
|
||||
enum blake2b_constant
|
||||
{
|
||||
BLAKE2B_BLOCKBYTES = 128,
|
||||
BLAKE2B_OUTBYTES = 64,
|
||||
BLAKE2B_KEYBYTES = 64,
|
||||
BLAKE2B_SALTBYTES = 16,
|
||||
BLAKE2B_PERSONALBYTES = 16
|
||||
};
|
||||
|
||||
typedef struct blake2b_state__
|
||||
{
|
||||
uint64_t h[8];
|
||||
uint64_t t[2];
|
||||
uint64_t f[2];
|
||||
uint8_t buf[BLAKE2B_BLOCKBYTES];
|
||||
size_t buflen;
|
||||
size_t outlen;
|
||||
uint8_t last_node;
|
||||
} blake2b_state;
|
||||
|
||||
BLAKE2_PACKED(struct blake2b_param__
|
||||
{
|
||||
uint8_t digest_length; /* 1 */
|
||||
uint8_t key_length; /* 2 */
|
||||
uint8_t fanout; /* 3 */
|
||||
uint8_t depth; /* 4 */
|
||||
uint32_t leaf_length; /* 8 */
|
||||
uint32_t node_offset; /* 12 */
|
||||
uint32_t xof_length; /* 16 */
|
||||
uint8_t node_depth; /* 17 */
|
||||
uint8_t inner_length; /* 18 */
|
||||
uint8_t reserved[14]; /* 32 */
|
||||
uint8_t salt[BLAKE2B_SALTBYTES]; /* 48 */
|
||||
uint8_t personal[BLAKE2B_PERSONALBYTES]; /* 64 */
|
||||
});
|
||||
|
||||
typedef struct blake2b_param__ blake2b_param;
|
||||
|
||||
/* Padded structs result in a compile-time error */
|
||||
enum {
|
||||
BLAKE2_DUMMY_2 = 1/(int)(sizeof(blake2b_param) == BLAKE2B_OUTBYTES)
|
||||
};
|
||||
|
||||
/* Streaming API */
|
||||
int blake2b_init( blake2b_state *S, size_t outlen );
|
||||
int blake2b_init_key( blake2b_state *S, size_t outlen, const void *key, size_t keylen );
|
||||
int blake2b_init_param( blake2b_state *S, const blake2b_param *P );
|
||||
int blake2b_update( blake2b_state *S, const void *in, size_t inlen );
|
||||
int blake2b_final( blake2b_state *S, void *out, size_t outlen );
|
||||
|
||||
/* Simple API */
|
||||
int blake2b( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen );
|
||||
|
||||
/* This is simply an alias for blake2b */
|
||||
int blake2( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen );
|
||||
|
||||
#endif
|
||||
|
|
@ -367,6 +367,14 @@ endmenu
|
|||
|
||||
menu "Hashing Support"
|
||||
|
||||
config BLAKE2
|
||||
bool "Enable BLAKE2 support"
|
||||
help
|
||||
This option enables support of hashing using BLAKE2B algorithm.
|
||||
The hash is calculated in software.
|
||||
The BLAKE2 algorithm produces a hash value (digest) between 1 and
|
||||
64 bytes.
|
||||
|
||||
config SHA1
|
||||
bool "Enable SHA1 support"
|
||||
help
|
||||
|
|
|
|||
|
|
@ -63,6 +63,7 @@ obj-$(CONFIG_$(SPL_)MD5) += md5.o
|
|||
obj-$(CONFIG_ECDSA) += ecdsa/
|
||||
obj-$(CONFIG_$(SPL_)RSA) += rsa/
|
||||
obj-$(CONFIG_HASH) += hash-checksum.o
|
||||
obj-$(CONFIG_BLAKE2) += blake2/blake2b.o
|
||||
obj-$(CONFIG_SHA1) += sha1.o
|
||||
obj-$(CONFIG_SHA256) += sha256.o
|
||||
obj-$(CONFIG_SHA512) += sha512.o
|
||||
|
|
|
|||
163
lib/blake2/blake2-impl.h
Normal file
163
lib/blake2/blake2-impl.h
Normal file
|
|
@ -0,0 +1,163 @@
|
|||
/* SPDX-License-Identifier: CC0-1.0 */
|
||||
/*
|
||||
BLAKE2 reference source code package - reference C implementations
|
||||
|
||||
Copyright 2012, Samuel Neves <sneves@dei.uc.pt>. You may use this under the
|
||||
terms of the CC0, the OpenSSL Licence, or the Apache Public License 2.0, at
|
||||
your option. The terms of these licenses can be found at:
|
||||
|
||||
- CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0
|
||||
- OpenSSL license : https://www.openssl.org/source/license.html
|
||||
- Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
More information about the BLAKE2 hash function can be found at
|
||||
https://blake2.net.
|
||||
*/
|
||||
|
||||
/*
|
||||
* Cross-ported from BLAKE2 (https://github.com/BLAKE2/BLAKE2).
|
||||
* Modifications includes:
|
||||
*
|
||||
* - Remove unsupported compilers like MSC/CPP
|
||||
* - Use u-boot library functions/macros
|
||||
*/
|
||||
#ifndef BLAKE2_IMPL_H
|
||||
#define BLAKE2_IMPL_H
|
||||
|
||||
#include <stdint.h>
|
||||
#include <string.h>
|
||||
|
||||
#define BLAKE2_INLINE inline
|
||||
|
||||
#ifdef __LITTLE_ENDIAN
|
||||
# define NATIVE_LITTLE_ENDIAN
|
||||
#endif
|
||||
|
||||
static BLAKE2_INLINE uint32_t load32( const void *src )
|
||||
{
|
||||
#if defined(NATIVE_LITTLE_ENDIAN)
|
||||
uint32_t w;
|
||||
memcpy(&w, src, sizeof w);
|
||||
return w;
|
||||
#else
|
||||
const uint8_t *p = ( const uint8_t * )src;
|
||||
return (( uint32_t )( p[0] ) << 0) |
|
||||
(( uint32_t )( p[1] ) << 8) |
|
||||
(( uint32_t )( p[2] ) << 16) |
|
||||
(( uint32_t )( p[3] ) << 24) ;
|
||||
#endif
|
||||
}
|
||||
|
||||
static BLAKE2_INLINE uint64_t load64( const void *src )
|
||||
{
|
||||
#if defined(NATIVE_LITTLE_ENDIAN)
|
||||
uint64_t w;
|
||||
memcpy(&w, src, sizeof w);
|
||||
return w;
|
||||
#else
|
||||
const uint8_t *p = ( const uint8_t * )src;
|
||||
return (( uint64_t )( p[0] ) << 0) |
|
||||
(( uint64_t )( p[1] ) << 8) |
|
||||
(( uint64_t )( p[2] ) << 16) |
|
||||
(( uint64_t )( p[3] ) << 24) |
|
||||
(( uint64_t )( p[4] ) << 32) |
|
||||
(( uint64_t )( p[5] ) << 40) |
|
||||
(( uint64_t )( p[6] ) << 48) |
|
||||
(( uint64_t )( p[7] ) << 56) ;
|
||||
#endif
|
||||
}
|
||||
|
||||
static BLAKE2_INLINE uint16_t load16( const void *src )
|
||||
{
|
||||
#if defined(NATIVE_LITTLE_ENDIAN)
|
||||
uint16_t w;
|
||||
memcpy(&w, src, sizeof w);
|
||||
return w;
|
||||
#else
|
||||
const uint8_t *p = ( const uint8_t * )src;
|
||||
return ( uint16_t )((( uint32_t )( p[0] ) << 0) |
|
||||
(( uint32_t )( p[1] ) << 8));
|
||||
#endif
|
||||
}
|
||||
|
||||
static BLAKE2_INLINE void store16( void *dst, uint16_t w )
|
||||
{
|
||||
#if defined(NATIVE_LITTLE_ENDIAN)
|
||||
memcpy(dst, &w, sizeof w);
|
||||
#else
|
||||
uint8_t *p = ( uint8_t * )dst;
|
||||
*p++ = ( uint8_t )w; w >>= 8;
|
||||
*p++ = ( uint8_t )w;
|
||||
#endif
|
||||
}
|
||||
|
||||
static BLAKE2_INLINE void store32( void *dst, uint32_t w )
|
||||
{
|
||||
#if defined(NATIVE_LITTLE_ENDIAN)
|
||||
memcpy(dst, &w, sizeof w);
|
||||
#else
|
||||
uint8_t *p = ( uint8_t * )dst;
|
||||
p[0] = (uint8_t)(w >> 0);
|
||||
p[1] = (uint8_t)(w >> 8);
|
||||
p[2] = (uint8_t)(w >> 16);
|
||||
p[3] = (uint8_t)(w >> 24);
|
||||
#endif
|
||||
}
|
||||
|
||||
static BLAKE2_INLINE void store64( void *dst, uint64_t w )
|
||||
{
|
||||
#if defined(NATIVE_LITTLE_ENDIAN)
|
||||
memcpy(dst, &w, sizeof w);
|
||||
#else
|
||||
uint8_t *p = ( uint8_t * )dst;
|
||||
p[0] = (uint8_t)(w >> 0);
|
||||
p[1] = (uint8_t)(w >> 8);
|
||||
p[2] = (uint8_t)(w >> 16);
|
||||
p[3] = (uint8_t)(w >> 24);
|
||||
p[4] = (uint8_t)(w >> 32);
|
||||
p[5] = (uint8_t)(w >> 40);
|
||||
p[6] = (uint8_t)(w >> 48);
|
||||
p[7] = (uint8_t)(w >> 56);
|
||||
#endif
|
||||
}
|
||||
|
||||
static BLAKE2_INLINE uint64_t load48( const void *src )
|
||||
{
|
||||
const uint8_t *p = ( const uint8_t * )src;
|
||||
return (( uint64_t )( p[0] ) << 0) |
|
||||
(( uint64_t )( p[1] ) << 8) |
|
||||
(( uint64_t )( p[2] ) << 16) |
|
||||
(( uint64_t )( p[3] ) << 24) |
|
||||
(( uint64_t )( p[4] ) << 32) |
|
||||
(( uint64_t )( p[5] ) << 40) ;
|
||||
}
|
||||
|
||||
static BLAKE2_INLINE void store48( void *dst, uint64_t w )
|
||||
{
|
||||
uint8_t *p = ( uint8_t * )dst;
|
||||
p[0] = (uint8_t)(w >> 0);
|
||||
p[1] = (uint8_t)(w >> 8);
|
||||
p[2] = (uint8_t)(w >> 16);
|
||||
p[3] = (uint8_t)(w >> 24);
|
||||
p[4] = (uint8_t)(w >> 32);
|
||||
p[5] = (uint8_t)(w >> 40);
|
||||
}
|
||||
|
||||
static BLAKE2_INLINE uint32_t rotr32( const uint32_t w, const unsigned c )
|
||||
{
|
||||
return ( w >> c ) | ( w << ( 32 - c ) );
|
||||
}
|
||||
|
||||
static BLAKE2_INLINE uint64_t rotr64( const uint64_t w, const unsigned c )
|
||||
{
|
||||
return ( w >> c ) | ( w << ( 64 - c ) );
|
||||
}
|
||||
|
||||
/* prevents compiler optimizing out memset() */
|
||||
static BLAKE2_INLINE void secure_zero_memory(void *v, size_t n)
|
||||
{
|
||||
static void *(*const volatile memset_v)(void *, int, size_t) = &memset;
|
||||
memset_v(v, 0, n);
|
||||
}
|
||||
|
||||
#endif
|
||||
311
lib/blake2/blake2b.c
Normal file
311
lib/blake2/blake2b.c
Normal file
|
|
@ -0,0 +1,311 @@
|
|||
/* SPDX-License-Identifier: CC0-1.0 */
|
||||
/*
|
||||
BLAKE2 reference source code package - reference C implementations
|
||||
|
||||
Copyright 2012, Samuel Neves <sneves@dei.uc.pt>. You may use this under the
|
||||
terms of the CC0, the OpenSSL Licence, or the Apache Public License 2.0, at
|
||||
your option. The terms of these licenses can be found at:
|
||||
|
||||
- CC0 1.0 Universal : http://creativecommons.org/publicdomain/zero/1.0
|
||||
- OpenSSL license : https://www.openssl.org/source/license.html
|
||||
- Apache 2.0 : http://www.apache.org/licenses/LICENSE-2.0
|
||||
|
||||
More information about the BLAKE2 hash function can be found at
|
||||
https://blake2.net.
|
||||
*/
|
||||
|
||||
/*
|
||||
* Cross-ported from BLAKE2 (https://github.com/BLAKE2/BLAKE2).
|
||||
* Modifications includes:
|
||||
*
|
||||
* - Remove unused features like selftest
|
||||
* - Use u-boot library functions/macros
|
||||
*/
|
||||
#include <stdint.h>
|
||||
#include <string.h>
|
||||
#include <stdio.h>
|
||||
#include <u-boot/blake2.h>
|
||||
#include "blake2-impl.h"
|
||||
|
||||
static const uint64_t blake2b_IV[8] =
|
||||
{
|
||||
0x6a09e667f3bcc908ULL, 0xbb67ae8584caa73bULL,
|
||||
0x3c6ef372fe94f82bULL, 0xa54ff53a5f1d36f1ULL,
|
||||
0x510e527fade682d1ULL, 0x9b05688c2b3e6c1fULL,
|
||||
0x1f83d9abfb41bd6bULL, 0x5be0cd19137e2179ULL
|
||||
};
|
||||
|
||||
static const uint8_t blake2b_sigma[12][16] =
|
||||
{
|
||||
{ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 } ,
|
||||
{ 14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3 } ,
|
||||
{ 11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4 } ,
|
||||
{ 7, 9, 3, 1, 13, 12, 11, 14, 2, 6, 5, 10, 4, 0, 15, 8 } ,
|
||||
{ 9, 0, 5, 7, 2, 4, 10, 15, 14, 1, 11, 12, 6, 8, 3, 13 } ,
|
||||
{ 2, 12, 6, 10, 0, 11, 8, 3, 4, 13, 7, 5, 15, 14, 1, 9 } ,
|
||||
{ 12, 5, 1, 15, 14, 13, 4, 10, 0, 7, 6, 3, 9, 2, 8, 11 } ,
|
||||
{ 13, 11, 7, 14, 12, 1, 3, 9, 5, 0, 15, 4, 8, 6, 2, 10 } ,
|
||||
{ 6, 15, 14, 9, 11, 3, 0, 8, 12, 2, 13, 7, 1, 4, 10, 5 } ,
|
||||
{ 10, 2, 8, 4, 7, 6, 1, 5, 15, 11, 9, 14, 3, 12, 13 , 0 } ,
|
||||
{ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 } ,
|
||||
{ 14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3 }
|
||||
};
|
||||
|
||||
|
||||
static void blake2b_set_lastnode( blake2b_state *S )
|
||||
{
|
||||
S->f[1] = (uint64_t)-1;
|
||||
}
|
||||
|
||||
/* Some helper functions, not necessarily useful */
|
||||
static int blake2b_is_lastblock( const blake2b_state *S )
|
||||
{
|
||||
return S->f[0] != 0;
|
||||
}
|
||||
|
||||
static void blake2b_set_lastblock( blake2b_state *S )
|
||||
{
|
||||
if( S->last_node ) blake2b_set_lastnode( S );
|
||||
|
||||
S->f[0] = (uint64_t)-1;
|
||||
}
|
||||
|
||||
static void blake2b_increment_counter( blake2b_state *S, const uint64_t inc )
|
||||
{
|
||||
S->t[0] += inc;
|
||||
S->t[1] += ( S->t[0] < inc );
|
||||
}
|
||||
|
||||
static void blake2b_init0( blake2b_state *S )
|
||||
{
|
||||
size_t i;
|
||||
memset( S, 0, sizeof( blake2b_state ) );
|
||||
|
||||
for( i = 0; i < 8; ++i ) S->h[i] = blake2b_IV[i];
|
||||
}
|
||||
|
||||
/* init xors IV with input parameter block */
|
||||
int blake2b_init_param( blake2b_state *S, const blake2b_param *P )
|
||||
{
|
||||
const uint8_t *p = ( const uint8_t * )( P );
|
||||
size_t i;
|
||||
|
||||
blake2b_init0( S );
|
||||
|
||||
/* IV XOR ParamBlock */
|
||||
for( i = 0; i < 8; ++i )
|
||||
S->h[i] ^= load64( p + sizeof( S->h[i] ) * i );
|
||||
|
||||
S->outlen = P->digest_length;
|
||||
return 0;
|
||||
}
|
||||
|
||||
|
||||
|
||||
int blake2b_init( blake2b_state *S, size_t outlen )
|
||||
{
|
||||
blake2b_param P[1];
|
||||
|
||||
if ( ( !outlen ) || ( outlen > BLAKE2B_OUTBYTES ) ) return -1;
|
||||
|
||||
P->digest_length = (uint8_t)outlen;
|
||||
P->key_length = 0;
|
||||
P->fanout = 1;
|
||||
P->depth = 1;
|
||||
store32( &P->leaf_length, 0 );
|
||||
store32( &P->node_offset, 0 );
|
||||
store32( &P->xof_length, 0 );
|
||||
P->node_depth = 0;
|
||||
P->inner_length = 0;
|
||||
memset( P->reserved, 0, sizeof( P->reserved ) );
|
||||
memset( P->salt, 0, sizeof( P->salt ) );
|
||||
memset( P->personal, 0, sizeof( P->personal ) );
|
||||
return blake2b_init_param( S, P );
|
||||
}
|
||||
|
||||
|
||||
int blake2b_init_key( blake2b_state *S, size_t outlen, const void *key, size_t keylen )
|
||||
{
|
||||
blake2b_param P[1];
|
||||
|
||||
if ( ( !outlen ) || ( outlen > BLAKE2B_OUTBYTES ) ) return -1;
|
||||
|
||||
if ( !key || !keylen || keylen > BLAKE2B_KEYBYTES ) return -1;
|
||||
|
||||
P->digest_length = (uint8_t)outlen;
|
||||
P->key_length = (uint8_t)keylen;
|
||||
P->fanout = 1;
|
||||
P->depth = 1;
|
||||
store32( &P->leaf_length, 0 );
|
||||
store32( &P->node_offset, 0 );
|
||||
store32( &P->xof_length, 0 );
|
||||
P->node_depth = 0;
|
||||
P->inner_length = 0;
|
||||
memset( P->reserved, 0, sizeof( P->reserved ) );
|
||||
memset( P->salt, 0, sizeof( P->salt ) );
|
||||
memset( P->personal, 0, sizeof( P->personal ) );
|
||||
|
||||
if( blake2b_init_param( S, P ) < 0 ) return -1;
|
||||
|
||||
{
|
||||
uint8_t block[BLAKE2B_BLOCKBYTES];
|
||||
memset( block, 0, BLAKE2B_BLOCKBYTES );
|
||||
memcpy( block, key, keylen );
|
||||
blake2b_update( S, block, BLAKE2B_BLOCKBYTES );
|
||||
secure_zero_memory( block, BLAKE2B_BLOCKBYTES ); /* Burn the key from stack */
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
#define G(r,i,a,b,c,d) \
|
||||
do { \
|
||||
a = a + b + m[blake2b_sigma[r][2*i+0]]; \
|
||||
d = rotr64(d ^ a, 32); \
|
||||
c = c + d; \
|
||||
b = rotr64(b ^ c, 24); \
|
||||
a = a + b + m[blake2b_sigma[r][2*i+1]]; \
|
||||
d = rotr64(d ^ a, 16); \
|
||||
c = c + d; \
|
||||
b = rotr64(b ^ c, 63); \
|
||||
} while(0)
|
||||
|
||||
#define R(r) \
|
||||
do { \
|
||||
G(r,0,v[ 0],v[ 4],v[ 8],v[12]); \
|
||||
G(r,1,v[ 1],v[ 5],v[ 9],v[13]); \
|
||||
G(r,2,v[ 2],v[ 6],v[10],v[14]); \
|
||||
G(r,3,v[ 3],v[ 7],v[11],v[15]); \
|
||||
G(r,4,v[ 0],v[ 5],v[10],v[15]); \
|
||||
G(r,5,v[ 1],v[ 6],v[11],v[12]); \
|
||||
G(r,6,v[ 2],v[ 7],v[ 8],v[13]); \
|
||||
G(r,7,v[ 3],v[ 4],v[ 9],v[14]); \
|
||||
} while(0)
|
||||
|
||||
static void blake2b_compress( blake2b_state *S, const uint8_t block[BLAKE2B_BLOCKBYTES] )
|
||||
{
|
||||
uint64_t m[16];
|
||||
uint64_t v[16];
|
||||
size_t i;
|
||||
|
||||
for( i = 0; i < 16; ++i ) {
|
||||
m[i] = load64( block + i * sizeof( m[i] ) );
|
||||
}
|
||||
|
||||
for( i = 0; i < 8; ++i ) {
|
||||
v[i] = S->h[i];
|
||||
}
|
||||
|
||||
v[ 8] = blake2b_IV[0];
|
||||
v[ 9] = blake2b_IV[1];
|
||||
v[10] = blake2b_IV[2];
|
||||
v[11] = blake2b_IV[3];
|
||||
v[12] = blake2b_IV[4] ^ S->t[0];
|
||||
v[13] = blake2b_IV[5] ^ S->t[1];
|
||||
v[14] = blake2b_IV[6] ^ S->f[0];
|
||||
v[15] = blake2b_IV[7] ^ S->f[1];
|
||||
|
||||
R( 0 );
|
||||
R( 1 );
|
||||
R( 2 );
|
||||
R( 3 );
|
||||
R( 4 );
|
||||
R( 5 );
|
||||
R( 6 );
|
||||
R( 7 );
|
||||
R( 8 );
|
||||
R( 9 );
|
||||
R( 10 );
|
||||
R( 11 );
|
||||
|
||||
for( i = 0; i < 8; ++i ) {
|
||||
S->h[i] = S->h[i] ^ v[i] ^ v[i + 8];
|
||||
}
|
||||
}
|
||||
|
||||
#undef G
|
||||
#undef R
|
||||
|
||||
int blake2b_update( blake2b_state *S, const void *pin, size_t inlen )
|
||||
{
|
||||
const unsigned char * in = (const unsigned char *)pin;
|
||||
if( inlen > 0 )
|
||||
{
|
||||
size_t left = S->buflen;
|
||||
size_t fill = BLAKE2B_BLOCKBYTES - left;
|
||||
if( inlen > fill )
|
||||
{
|
||||
S->buflen = 0;
|
||||
memcpy( S->buf + left, in, fill ); /* Fill buffer */
|
||||
blake2b_increment_counter( S, BLAKE2B_BLOCKBYTES );
|
||||
blake2b_compress( S, S->buf ); /* Compress */
|
||||
in += fill; inlen -= fill;
|
||||
while(inlen > BLAKE2B_BLOCKBYTES) {
|
||||
blake2b_increment_counter(S, BLAKE2B_BLOCKBYTES);
|
||||
blake2b_compress( S, in );
|
||||
in += BLAKE2B_BLOCKBYTES;
|
||||
inlen -= BLAKE2B_BLOCKBYTES;
|
||||
}
|
||||
}
|
||||
memcpy( S->buf + S->buflen, in, inlen );
|
||||
S->buflen += inlen;
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
int blake2b_final( blake2b_state *S, void *out, size_t outlen )
|
||||
{
|
||||
uint8_t buffer[BLAKE2B_OUTBYTES] = {0};
|
||||
size_t i;
|
||||
|
||||
if( out == NULL || outlen < S->outlen )
|
||||
return -1;
|
||||
|
||||
if( blake2b_is_lastblock( S ) )
|
||||
return -1;
|
||||
|
||||
blake2b_increment_counter( S, S->buflen );
|
||||
blake2b_set_lastblock( S );
|
||||
memset( S->buf + S->buflen, 0, BLAKE2B_BLOCKBYTES - S->buflen ); /* Padding */
|
||||
blake2b_compress( S, S->buf );
|
||||
|
||||
for( i = 0; i < 8; ++i ) /* Output full hash to temp buffer */
|
||||
store64( buffer + sizeof( S->h[i] ) * i, S->h[i] );
|
||||
|
||||
memcpy( out, buffer, S->outlen );
|
||||
secure_zero_memory(buffer, sizeof(buffer));
|
||||
return 0;
|
||||
}
|
||||
|
||||
/* inlen, at least, should be uint64_t. Others can be size_t. */
|
||||
int blake2b( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen )
|
||||
{
|
||||
blake2b_state S[1];
|
||||
|
||||
/* Verify parameters */
|
||||
if ( NULL == in && inlen > 0 ) return -1;
|
||||
|
||||
if ( NULL == out ) return -1;
|
||||
|
||||
if( NULL == key && keylen > 0 ) return -1;
|
||||
|
||||
if( !outlen || outlen > BLAKE2B_OUTBYTES ) return -1;
|
||||
|
||||
if( keylen > BLAKE2B_KEYBYTES ) return -1;
|
||||
|
||||
if( keylen > 0 )
|
||||
{
|
||||
if( blake2b_init_key( S, outlen, key, keylen ) < 0 ) return -1;
|
||||
}
|
||||
else
|
||||
{
|
||||
if( blake2b_init( S, outlen ) < 0 ) return -1;
|
||||
}
|
||||
|
||||
blake2b_update( S, ( const uint8_t * )in, inlen );
|
||||
blake2b_final( S, out, outlen );
|
||||
return 0;
|
||||
}
|
||||
|
||||
int blake2( void *out, size_t outlen, const void *in, size_t inlen, const void *key, size_t keylen ) {
|
||||
return blake2b(out, outlen, in, inlen, key, keylen);
|
||||
}
|
||||
Loading…
Reference in a new issue